Light-controlled photonics-based mm-wave beam switch

Yurchenko V., Ciydem M., Gradziel M., Murphy A., Altintas A.

OPTICS EXPRESS, vol.24, no.15, pp.16471-16478, 2016 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 24 Issue: 15
  • Publication Date: 2016
  • Doi Number: 10.1364/oe.24.016471
  • Journal Name: OPTICS EXPRESS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.16471-16478
  • Gazi University Affiliated: No

Abstract

We present experimental investigation of light-controlled photonics-enhanced quasi-optical mm-wave beam switch operating at a resonant frequency in the mm-wave band of 75 to 110 GHz. The switch is implemented as a Bragg structure with a resonant layer of high-resistivity silicon that creates a narrow transmission peak within the mm-wave propagation gap. The peak amplitude is sensitive to the intensity of light pulses illuminating the structure. When using a silicon wafer of 30 KOhm.cm resistivity and light pulses created by a 400 W LED-array light source, we achieved mm-wave transmission peak modulation exceeding 15 dB. (C) 2016 Optical Society of America